3. facts Facts: - Component of DNA, RNA, ATP, proteins and enzymes - Cycles in a sedimentary cylce - A good example of how a mineral element becomes part of an organism. - The source of Phosphorus (P) is rock. - It is released into the cylce through erosion or mining. - It is soluble in H2O as phosphate (PO4) - It is taken up by plant roots, then travels through food chains. - It is returned to sediment